this stand is made to move with your quad in launch mode, it swings to max angle of 75 degrees.

bearings are 3mm x 7mm x 3mm
https://www.amazon.com/uxcell-Bearing-Double-Shielded-Bearings/dp/B07FW18RQY/ref=rvi_d_sccl_2/136-7469754-3562756?pd_rd_w=Pfzni&content-id=amzn1.sym.f5690a4d-f2bb-45d9-9d1b-736fee412437&pf_rd_p=f5690a4d-f2bb-45d9-9d1b-736fee412437&pf_rd_r=SJJA1HKK3XP89P80SRZ7&pd_rd_wg=h285p&pd_rd_r=98887879-d448-4d39-a93c-a12a00d5d7dc&pd_rd_i=B07FW18RQY&psc=1

uses our standard M3 and M2 bolts. four m2 by >5mm for the bearing mounts in the car for strength, eight M3 by 5mm for the base, and eight m3 by >5mm for the launch deck